Dr. Michael J. Ackerman, Windland Smith Rice Cardiovascular Genomics Research Professor and Professor of Medicine, Pediatrics, and Pharmacology at Mayo Clinic in Rochester, MN, discusses his artice appearing in the October 2011 Issue of Mayo Clinic Proceedings on a relationship between victims of an otherwise unexplained drowning and a collection of genetic heart rhythm disorders known as the cardiac channelopathies. These findings have the potential to not only establish a genetic cause...